My basket case buffalo...

Alright so I'm a new member. I have scoured the internet trying to find out info on this coin. This is a 1919 double die buffalo that I fondly call my "basket case." It contains a rim clip,
cud, two peels (one retained) was struck with a retained coin or another coin was struck over it in two places. Lightly struck e pluribus, lamination errors, dye drag on the obverse plus I believe I'm missing another one or two that I have failed to mention here... What would I call this bundle of errors? And is there any value to this coin in this grade? I inherited it and quite treasure it, not that I wouldn't possiably part with it, (single mom here) but I dearly cared about the relative who left it to me. I however am told by my insurance agents to disclose coins of value and this one is a toughy to find information on...are multiple mint error coins valued higher?

Just curious, but how do you know that this coin is everything you state it is? Have you had it attributed to back up these designations? From what you've provided, this just looks like an old coin that's had a rough life.

Dye drag??? I certainly would not add this coin or any others on an insurance rider until you know how to use proper terminology and actually know what any coins are really worth. Most insurance companies will not pay out on any losses if your coins are not looked at by a professional and you have a letter from them after an appraisal.